A genius doctor, once the most dazzling star doctor in the hospital, is now in a coma.When his free consciousness leaves his body and wanders in the hazy area between life and death, he meets a 20-year-old ghost doctor - a mysterious existence who once assisted him in completing a difficult operation at a critical moment.The superb medical skills and calm eyes were now filled with a familiar and unfamiliar warmth, as if crossing the boundary between life and death, and once again pulled him back from the edge of the abyss.